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Finding the Fourth Proportional to 350,162.55, 525,407.85 and 172,572.69

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Solution

The fourth proportional to 350,162.55, 525,407.85 and 172,572.69 is: 258,939.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    350,162.55 : 525,407.85 = 172,572.69 : x
  2. Step 2: Convert to fraction form
    350,162.55/525,407.85 = 172,572.69/x
  3. Step 3: Cross multiply
    350,162.55x = 525,407.85 × 172,572.69
  4. Step 4: Simplify right side
    350,162.55x = 90,671,046,021.62
  5. Step 5: Solve for x
    x = 90,671,046,021.62/350,162.55
  6. Step 6: Final answer
    x = 258,939.87

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.